Symposium

Quick Facts

• Author: Plato
• Date: usually placed in Plato's middle period, around the 380s BCE
• Form: dramatic dialogue set at an Athenian drinking party
• Main subject: eros, which means erotic love, desire, and longing
• Central teacher inside the dialogue: Socrates, who reports what he learned from Diotima
• Famous doctrine: the ladder of love, the ascent from bodily beauty to Beauty itself

The Problem

The Symposium asks what love really wants.

The easy answer is that love wants a beautiful person. Plato thinks that answer is too small. At Agathon's party, several guests praise Eros, the god of love. Their speeches show different ways people explain love: love makes soldiers brave, love has higher and lower forms, love joins separated halves, love is graceful and beautiful.

Socrates changes the question. If love is desire, then love wants what it lacks. If love wants beauty and goodness, then love itself cannot already possess them in a complete way. Love is not simple fullness. It is need, motion, and search.

In One Minute

The Symposium is Plato's dialogue about how ordinary desire can become philosophy.

At a banquet, each speaker gives a speech praising love. Aristophanes tells the famous myth that lovers seek their "other half." Agathon says Love is young, delicate, beautiful, and virtuous. Socrates then questions Agathon and reports Diotima's deeper lesson: love is not the possession of beauty, but the desire for beauty and goodness.

Diotima says every person wants the good to be theirs forever. Because humans are mortal, they try to reach a kind of immortality by having children, making laws, writing poems, teaching virtue, or knowing what is always true. Beauty draws this desire out of us. The best lover climbs from attraction to one beautiful body, to all beautiful bodies, to beautiful souls, to beautiful practices and laws, to knowledge, and finally to Beauty itself.

That is why the Symposium is central to Platonism. It turns love from a private feeling into a path toward truth.

The Main Argument

The dialogue begins with speeches that praise love from the outside. Phaedrus says love inspires noble action because lovers want to appear worthy before the beloved. Pausanias separates common love from noble love: common love chases pleasure, while noble love aims at character and education. Eryximachus, the doctor, expands love into a force of harmony in bodies, music, seasons, and gods.

Aristophanes gives the most memorable non-Socratic speech. He says humans were once double beings, split apart by Zeus. Love is the search for the missing half. This explains why lovers feel incomplete and want lifelong union. It is funny, touching, and psychologically sharp, but Socrates later rejects its deepest claim. For Socrates and Diotima, love is not mainly the search for "my other half." It is the search for the good.

Agathon then praises Love as beautiful, young, soft, and good. Socrates asks a simple question: does love desire something or nothing? Agathon agrees that love desires something. Socrates adds that desire is for what one lacks. A thirsty person wants water because they do not have it; a learner wants knowledge because they do not fully possess it. So if love desires beauty and goodness, love itself is not already beautiful and good in the way Agathon claimed.

Socrates then tells Diotima's teaching. Eros is not a god who already has everything. Eros is a daimon, an in-between spirit. "In-between" means that love stands between poverty and plenty, ignorance and wisdom, mortality and immortality. Love lacks the good, but it is not dead to the good. It is awake to what it lacks.

Diotima's main claim is that love is the desire to possess the good forever. This definition is bigger than romance. A parent wants children to live on. A lawgiver wants a city to become better. A poet wants words to outlast death. A philosopher wants wisdom that does not fade. All of these are forms of eros because each is a way mortal beings reach beyond their limits.

The ladder of love is Diotima's account of how desire can be educated. The lover begins with one beautiful body. Then he learns that bodily beauty appears in many bodies. Then he sees that a beautiful soul matters more than good looks. Then he comes to admire beautiful actions, laws, and forms of knowledge. At the top he sees Beauty itself: not this face, this custom, or this poem, but the stable reality that makes beautiful things beautiful.

Alcibiades interrupts after Socrates' speech and turns the praise from Love to Socrates himself. His drunken speech matters. Alcibiades desires Socrates, admires him, and is ashamed by him, but he cannot become disciplined. He shows what happens when eros is powerful but not converted into philosophy.

Key Ideas With Examples

• Eros means desire or longing, especially erotic longing. In the dialogue, it becomes broader than sex or romance. Wanting a beautiful person, wanting honor, wanting children, wanting wisdom, and wanting lasting goodness are all forms of eros.

• Beauty is what draws desire outward. A beautiful face can start the process, but Diotima thinks beauty also appears in souls, actions, laws, sciences, and truth. For example, a just law can be "beautiful" because it has order, proportion, and goodness.

• The good means what is genuinely worth having. It is not just what feels pleasant right now. A person may want applause, but Diotima thinks the deeper desire is to have something good and lasting.

• The ladder of love is a training of attention. The lover starts with "this person is beautiful" and learns to see wider patterns: many bodies are beautiful, character can be beautiful, a good city can be beautiful, knowledge can be beautiful. The point is not to hate bodies. The point is to stop treating one body as the whole meaning of beauty.

• Beauty itself is Plato's name for the unchanging source or standard of beautiful things. A flower fades, a face ages, and a song ends. Beauty itself is not one more pretty object. It is what the mind is trying to understand when it asks what all beautiful things have in common.

• Birth in beauty means bringing something good into existence under the pull of beauty. Physical birth is one version. Teaching courage, writing a poem, founding a law, or forming a better soul are other versions. Plato uses birth as a metaphor for creation.

• Socratic ignorance means knowing that you lack wisdom. Socrates is erotic in this sense: he does not claim to possess wisdom as a finished object. He loves it, pursues it, and helps others feel the lack that begins inquiry.

• Alcibiades is the test case. He sees that Socrates has inner beauty, but he wants possession, status, and sexual victory. He is moved by philosophy but not transformed by it.

Why It Matters

The Symposium made love a serious philosophical subject. It asks whether desire is merely appetite or whether it can educate the soul.

It also gives one of the clearest images of Platonic ascent. The mind begins with sensible things, such as bodies and voices, and moves toward intelligible reality, meaning what can be grasped by thought rather than by the senses alone. This pattern became central to later Platonism and Neoplatonism.

The dialogue also complicates the modern phrase "Platonic love." In common speech it often means affection without sex. In the Symposium, love begins with embodied attraction but can be redirected toward virtue, knowledge, and Beauty itself. It is not anti-erotic. It is an argument about what eros is really seeking.

Proponents, Critics, and Opponents

Plato presents the strongest doctrine through Socrates, but he does not make the dialogue a flat lecture. The earlier speeches remain important because they show real partial truths about love: honor, education, harmony, wholeness, pleasure, and beauty.

Aristophanes is the great alternative voice. His myth says love seeks personal completion with another individual. Diotima's answer is more abstract: love seeks the good and finally Beauty itself. That creates a lasting tension. Does higher love deepen personal love, or does it leave the individual beloved behind?

Alcibiades is an internal critic by example. He praises Socrates but exposes the difficulty of the doctrine. It is one thing to admire wisdom; it is another to reorder one's life around it.

Later Platonism treated the ladder as a model of spiritual ascent. Plotinus develops a related movement from sensible beauty toward higher intelligible reality and ultimately the One. Modern critics often press the worry that Diotima's ladder makes the beloved person too replaceable, as if the individual matters only as a step toward an abstract object.

Related Pages

• Plato
• Socrates
• Platonism
• Plotinus
• Republic